Print Preview: Add option to rasterize PDFs and add JPEG compression.

third_party/WebKit/public/web/WebPrintParams.h

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
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   // Specifies the selected printer default printable area details in
   // points.
   WebRect printableArea;
 
   // Specifies the selected printer default paper size in points.
   WebSize paperSize;
 
   // Specifies user selected DPI for printing.
   int printerDPI;
 
+  // Specifies whether to print PDFs as image.
+  bool rasterizePDF = false;
+
   // Specifies whether to reduce/enlarge/retain the print contents to fit the
   // printable area. (This is used only by plugin printing).
   WebPrintScalingOption printScalingOption;
 
   WebPrintParams()
       : printerDPI(72),
         printScalingOption(WebPrintScalingOptionFitToPrintableArea) {}
 
   WebPrintParams(const WebSize& paperSize)
       : printContentArea(WebRect(0, 0, paperSize.width, paperSize.height)),
@@ skipping 10 matching lines @@
       : printContentArea(printContentArea),
         printableArea(printableArea),
         paperSize(paperSize),
         printerDPI(printerDPI),
         printScalingOption(printScalingOption) {}
 };
 
 }  // namespace blink
 
 #endif